PDF Solutions (NASDAQ:PDFS) reported quarterly earnings of $0.21 per share which beat the analyst consensus estimate of $0.18 by 16.67 percent. This is a 40 percent increase over earnings of $0.15 per share from the same period last year. The company reported quarterly sales of $47.78 million which beat the analyst consensus estimate of $47.74 million by 0.08 percent. This is a 15.66 percent increase over sales of $41.31 million the same period last year.